string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%9A%8F%E7%9D%80%E6%96%B0%E5%AA%92%E4%BD%93%E7%9A%84%E5%8F%91%E5%B1%95 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
随着新媒体的发展
